Drug interactions
Didanosine + Vincristine
Severity: Major
Didanosine and Vincristine: major interaction.
Last updated
For healthcare professionals — reference only. This page is a brief summary, not medical advice and not a substitute for official labeling or clinical judgement. Always verify before prescribing or dispensing.
Summary
Both agents are neurotoxic, and co-administration can increase the risk and severity of peripheral neuropathy. Vincristine neuropathy is already dose-limiting, and didanosine adds to it.
What this interaction means in plain words
Didanosine and Vincristine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for.
Didanosine belongs to Anti Virals; Vincristine belongs to Oncology.
Why it happens
Additive peripheral neurotoxicity through different mechanisms (mitochondrial toxicity with didanosine, microtubule disruption with vincristine).
What to do
Prefer an alternative antiretroviral to didanosine during vincristine therapy. If unavoidable, assess neurological status before each vincristine dose and reduce or stop drugs at early neuropathy signs.
What to ask your pharmacist
- Does the benefit of taking both outweigh the risk in my case?
- Do I need any blood test, ECG or other check while on both?
- What early warning signs should I watch for, and what should I do if they appear?
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Other interactions of Didanosine
- Didanosine + Elvitegravir / cobicistat / emtricitabine / tenofovir df Contraindicated
- Didanosine + Hydroxycarbamide Contraindicated
- Didanosine + Ribavirin Contraindicated
- Didanosine + Stavudine Contraindicated
- Allopurinol + Didanosine Major
- Atidarsagene autotemcel + Didanosine Major
Other interactions of Vincristine
- Adenovirus types 4 and 7 live + Vincristine Contraindicated
- Apalutamide + Vincristine Major
- Atazanavir + Vincristine Major
- Ceritinib + Vincristine Major
- Chloramphenicol + Vincristine Major
- Clarithromycin + Vincristine Major
Frequently asked questions
Can I take Didanosine with Vincristine?
MediHelp rates the interaction as major. Didanosine and Vincristine can interact in a way that may be serious. Using them together is sometimes necessary, but it needs a deliberate decision by the prescriber, a plan for monitoring, and clear advice on the warning signs to watch for. Both agents are neurotoxic, and co-administration can increase the risk and severity of peripheral neuropathy. Vincristine neuropathy is already dose-limiting, and didanosine adds to it.
How serious is the interaction between Didanosine and Vincristine?
MediHelp rates it major, on a four-level scale (minor, moderate, major, contraindicated) based on published labels and references. What to do, in brief: Prefer an alternative antiretroviral to didanosine during vincristine therapy. If unavoidable, assess neurological status before each vincristine dose and reduce or stop drugs at early neuropathy signs.
What other medicines interact with Didanosine?
MediHelp also lists interactions of Didanosine with, for example, Elvitegravir / cobicistat / emtricitabine / tenofovir df, Hydroxycarbamide, Ribavirin. The full list is on the Didanosine page.
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